Event Brief
Dec 10, 2025 at 7:03 AM ET
GCHQ's Christmas Code-Cracking Challenge
By The BriefBrief
GCHQ invites the public to participate in a festive code-cracking challenge.
WHO: GCHQ
WHAT: Christmas code-cracking challenge
WHEN: Dec 9, 2025 at 7:00 PM ET
WHERE: United Kingdom
WHY: To engage the public in cryptography and problem-solving
How this brief is built: The BriefBrief correlates multiple sources into one evolving event brief, updated as new facts emerge.
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